I have read some people that have done the shim have had some trouble with the install. It seems mostly to be with the removal of the bracket holding the glow plug control module. This did take me a while but I was able to remove it in under an hour. Now the next step I have been working on since yesterday. I cannot get the FPRV loose! My neighbor and I have tried for a while with no success. We have used box wrenches, standard rachets, and pneumatic rachets. We cannot get this nut to break. Is it possible that there is pressure on it that needs to be relieved somewhere? Did anyone have success another way? So far the nut is stronger that 2 of us on the rachet handle. Any help would be appreciated.
Thanks
John

Some are much tighter than others, I used a second wrench placed over the open end of my first wrench to gain a some leverage.

You will need a high quality 18mm wrench.

It was tightened by the Hand of God himself. :eek:

I bought a Snap-On 18mm combo wrench, put the box end on the valve, used a larger combo wrench and put the box end on the open end of the Snap-On and pulled like crazy. The Snap-On actually started to bend long ways before the thing popped and broke loose. You need lots of leverage. Or Superman. :D

I sould have called the red cross first if i would have known I was going to give so much blood thru my busted knuckles.
:cool:

Looks like this might be a 2 man job. Ill just have to take it to work tomorrow and see if I can get a hand. I tried linking 2 box wrenchs together but it kept slipping off. So it will have to wait another day. On to putting on my Cool Duals!

We used a high power 3/8 impact gun with a six point socket. With about a inch extension

Update! I have tried for a little each day for 5 days now. Today I even took the truck to our service dept for the city I work for. I put $20 on the engine and said the first one to get the bolt loose gets the money. They tried everything they had for over an hour. Now I have come to the realization that this might not get done. If there are any more suggestions I would like to hear them. I have tried sockets, pneumatic rachet, 1 and 2 box wrenches. I just cant get a good angle on it. The wrenches slip off when too much pressure is applied and there is not enough room for a breaker bar.
This is an amazing bolt.
John

My son recently encountered something similar on a turbo change. He said he used a ratchet strap on the end of the breakover. Not excactly sure how he did it, but maybe you can come up with something from the idea.:)

Maybe a left handed thread :D :D :D , sorry just a joke.

Back to your question, whether there is still pressure on, answer: NO

The injectors are made for this reason, if you turn the engine off, the pressure blows up over the injectors. It needs a few minutes until the pressure is decreased. Maybe it stays 60-80 psi in there but that is no force on the FRPRV.

Good luck!!!

Well I happen to have A LOT of tools at my disposal as I own a Snap On truck. :D

I have done this a couple of ways, the cheapest is get an OEXLM18B (the extra long 18 combo wrench) and then use whatever other big cheap wrench double wrench pull like your life depends on it. If you have a helper have them use a dead blow and hit the wrench as you pull (as close to the bolt as possible) this is like getting an impact on it.

I have also done it with a single wrench I used a 0 degree offset box xdhfm1820 (really long double box end) and had my buddy (happens to play O-line for the local collage, and is a big boy 315+lbs :eek:) pull on that and broke it free.

I loaned a couple tools to a buddy so he could do it and this is what he used. (mind you I wasn't there) He used a SN25A breaker bar 24" long and sniped it with a piece of pipe, and again had some one tap the breaker bar with a hammer and a piece of wood (to protect the breaker bar), he said it was stiff but came on the first try.

And finally my favorite way I used an mg31 (3/8" impact gun 300ft. lbs) with a short ext, and flex socket. Bam right off. :cool:

(Quick note: Contact your local snap on rep for these tools, I just put up part numbers for quicker reference, Snap on does deal over the internet, but support your local rep)

I like the mg31 idea but my impact gun wont fit in there. Thanks for the part numbers. The next time I see our city's snap on rep at the service dept, I will ask him about those parts. Something's got to work.
Thanks
John

Still no luck, damn!!!

Maybe try to get the rail out of the engine and use a heavy duty vice. At least you have access to it.

Still good luck!!!

I like the mg31 idea but my impact gun wont fit in there. Thanks for the part numbers. The next time I see our city's snap on rep at the service dept, I will ask him about those parts. Something's got to work.
Thanks
John

Maybe if you can find someone to assist you, you could use a small pry bar to hold the box end of the wrench on the valve. Then you can use another wrench or pipe extension to get more torque on it and pull like crazy. Its what I did!

With someone else making sure the wrench stays seated on the valve, you'll be freed up to apply more pulling force to the valve without worrying that it'll come free. Use the biggest wrench you can find as an extension on the 18mm wrench so you can exert the most force possible.

Good luck.

I use a 1/2 impact and 18mm 6pt socket. Its just an old IR231 impact, nothing special. Works every time. I've done dozens of them this way. Its a tight fit , but believe me, it can be done.

The same gorilla that put the stock oil filter at the factory must have tightened this bolt.:D